what happens if you inject vitamin b12 into a vein How to Give Injection: Step-By-Step Instructions B12 Shots vs. IV Therapy:

B12/MICC injections support your metabolism and help your body convert nutrients into energy

Used for anaesthesia in a clinical setting or as a propellant gas, it's commonly abused as a recreational drug

Typically, it takes 1 4 weeks to see results, with several injections often recommended in the first two weeks (loading doses) followed by one injection every 3 4 weeks for maintenance

Similarly, although hepatic dysfunction can occur with large niacin doses (1-3 grams daily over months) causing elevated liver enzymes or jaundice, niacinamide at 100 mg is very unlikely to have any adverse effect on the liver